AWGN channel

Group: Baseband > Channel

Applies additive white Gaussian noise to a signal.

Parameters

Signal

Information rate (R)

• Description: Number of information bits per symbol. A rate 1/2 code would have a rate of 0.5
• Automation reference: InformationRate
• Enablement: SNRSpecification == EbN0
• Type: real

Bits per symbol

• Description: Number of bits encoded per symbol (BPSK=1, QPSK=2, 8-PSK=3, etc)
• Automation reference: BitsPerSymbol
• Enablement: SNRSpecification == EbN0
• Type: real

Sample Rate

• Description: Number of samples per second
• Automation reference: SampleRate
• Unit: Hz
• Type: real

Symbol Rate

• Description: Symbol rate of processed data
• Automation reference: SymbolRate
• Unit: Hz
• Enablement: SNRSpecification in [EbN0, EsN0]
• Type: real

Mute Signal

• Description: Only generate the additive noise based on the measured signal.
• Automation reference: MuteSignal
• Type: boolean

Input level

Time Constant

• Description: Time for input magnitude estimate to reach 63.2% towards the actual magnitude
• Automation reference: TimeConstant
• Unit: s
• Type: real

Noise

Noise Level

• Description: Simulated noise level.
• Automation reference: NoiseLevel
• Unit: dB
• Type: real

SNR Specification

• Description: How to specify the SNR
• Automation reference: SNRSpecification
• Type: enumeration

Identifier	Value	Description
SNR	SNR	Signal-to-noise ratio
EbN0	Eb/N0	Energy per bit to noise power spectral density
EsN0	Es/N0	Energy per symbol to noise power spectral density

Measurements

Input Level Estimate

• Description: MISSING
• Automation reference: InputLevelEstimate
• Type: real

Noise Variance

• Description: MISSING
• Automation reference: NoiseVariance
• Type: real